lec2.2 - 38 Lecture 4 CHAPTER 2 PROBABILITY Counting...

38Lecture 4: CHAPTER 2: PROBABILITY Counting Methods (Section 2.2, page 62) Permutations: In how many ways can you order the letters A, B, C? Five lifeguards are available for duty one Saturday afternoon. There are three lifeguard stations. In how many ways can three lifeguards be chosen and ordered among the stations?